Bought online Vaccuum cleaner - company not providing item

[ProseccoOnIce]

I bought a new vacuum cleaner online, from a well-known manufacturing company, using their own website. And got a very good deal in their spring offers section- or so I thought.

I paid using PayPal in 3 (paying over 3 instalments to help spread the cost), but didn't get any confirmation email & the transaction didn't complete with PayPal.

So I phoned them back a couple of days later (by which point the item had increased in price) & spoke to someone in their call centre (India I think) & they managed to find to find the order, said they'd honour the price & send it out next day delivery. Paid it on credit card.

This was last Thursday & of course it's been the bank holiday weekend - but today no item has been delivered, no emails about despatch, no order confirmation & my credit card has not been charged.

I suspect they may have sold out of the item or realised the price was a bit low & pulled the advert.

Are they obliged to send me the item at the cost it was advertised?

Is there anything I can do here?

No.

I had thought if they advertised the product at a certain price they were obliged to sell it at that?

They have now increased the price.

you are incorrect.
they are not obliged to sell it at a particular price, or indeed to sell it at all.
but,
you seem to have already paid for it.
but did not receive confirmation of that from the supplier.
so i think you will just have to wait. or cancel the order, if poss.
you have not given long for delivery anyway since maundy thursday.
wait til end of week.