Come on - rather than just looking at the headline - let's critically read the article and see what it actually tells us:
It was one of the channel’s most-hyped shows to date this year, Was it? Source?
with the added silver-lining of advancing a noble cause. But ITV may have oversold the charitable effort they were embarking on with The Real Full Monty: Ladies Night, as it’s reported the stars of the show took home huge paychecks worth up to £10,000 while the show itself only raised just under half that sum for charity. - Again, no souce for this "reported paycheck" of "up to £10,000". Also it doesn't say £10,000 each, just £10,000. It might be that the "£10,000" was shared between the stars.
‘Viewers were made to think The Real Full Monty: Ladies Night was all about raising awareness and funds for breast cancer,’ an insider told The Sun. - it was...
‘While it did raise huge awareness and encourage viewers to check their bodies there we go...
a host of the stars took a massive payday in the name of charity.’ - no source for this...
‘It’s pretty appalling that this wasn’t made clear to viewers. Fans will be furious that they pocketed such huge sums.’ ... WHAT HUGE SUMS?
The likes of Megan McKenna and Coleen Nolan are said to have been paid up to £10,000 for appearing on the one-off special -- repetition, no source
while Coppafeel! and five other cancer charities only received just over £4,000 in donations - again each? or £4000 between the 6 charities? If they got £4k EACH, then it indicates that the amount raised was actually around £24,000. But sensationalism reports the lower figure for clicks!
According to the BT My Donate page for the show and its male counterpart both TV outings pulled in a combined total of £4,218. - that is only what was donated through ONE method. I'm guessing this is where the figure of £4,000 came from 
The show, however, was never meant to be a fundraising vehicle but instead aimed to raise awareness of breast cancer; - well, there we go...
though the paper claims that ITV sold the show to the public as a bid to raise money for charity. - So this is a he says, she says thing. "Metro says, the Sun says that X happened. So, Metro isn't saying anything....
It reports that after contacting the channel, ITV removed all references from their website that the show was ‘in the name of charity’. - again with the he said, she said bullshit...
A spokesperson for ITV told Metro.co.uk: ‘The Real Full Monty shows clear focus and aim was raising awareness about cancer and encouraging people to make vital health checks which can save lives. ‘They clearly weren’t television charity fundraisers. The people who took part have all been touched by cancer in some way in their lives and their passion for raising awareness was obvious to everyone watching. They were ITV’s most watched factual shows this year, with overwhelmingly positive feedback, reaching millions of people with an important health message.’ - so actual rep saying it wasn't a fundraiser, but an awareness raiser
Coleen Nolan, Megan McKenna, broadcaster Victoria Derbyshire, Emmerdale actress Sally Dexter, actress Helen Lederer, TV legend Ruth Madoc, presenter Sarah-Jane Crawford and singer Michelle Heaton all took part in the performance at Sheffield’s City Hall. And it proved to be an exceptionally popular one-off as the famous ladies baring all peaked at an audience of 5.5million viewers, compared to their male compatriots the night before who managed 4.2million views. There’s no suggestion the stars of either show have been accused of any wrongdoing.
So the tl:dr version of the actual article is
The Sun reports that stars may have got paid an unknown amount to appear on a show that raises awareness of cancer. The show happened to raise at least £4,000 which was given to 6 charities.