To want to challenge my mil on differential treatment of her grandchildren?

[Iwishiwasatomato]

Ok - new on here so please bear with me!
just need a reality check on something that has really hurt me but I need some advice on whether I am blowing this out of proportion.....
My lovely hubby has one elder brother. We have a DS 21 and DD 18. My DN turned 18 last week and also have a DN 16.
I am fairly close to MIL - had ups and downs over the years but since FIL died two years ago lovely hubby and I have helped an awful lot.
For my DS 18th he was given £50, My DD was given a pair of gold sleepers (used) as they had 'sentimental value'......
A few weeks ago, my MIL was chatting about DN's upcoming birthday. She initiated the conversation and told me that she would be giving him £50 as she 'wanted all her grandchildren to be treated the same'.
Have just got back from DN's party (which was lovely) but my nephew told me that grandma had given him £100.
I am really upset. Please don't get me wrong, it is NOT the money - it is the fact she blatantly lied to me that I am most upset about.
Question us - do I call her on it? Part of me wants to ask in a reasonable way why she felt the need to lie - the other part thinks just let it go.
Hubby is leaving it to me.
Help.

Tbh I assumed from title you were talking about massive difference, but you're ago sizing over 50£.... forget it and move on. And never ask her, its a present.

Agonizing

Wow there seems to be a lot of this around. It drives me crazy. My two boys get nothing from my mil but my nieces are taken on holidays, brought clothes everytime mil goes shopping, always invited to stay the night. It's just made us pull further away. I think In her mind because we both work ft we have "more" money. This is certainly not the case. My sil lives in a cheaper place to rent & bil earns excellent money. They also only have one car & we have two to maintain. Sometimes it really upsets me. I think as long as you decide not to treat your children & grandchildren differently then that's the main thing. Your children will soon see for themselves! And just be greatful that there mum is lovely & treats her kids equal. They will then do the same with theirs. It's really crap but I would say nothing. That's only because I wouldn't want a fall out. I still want my kids to know there gp's. They just secretly know there other sets are better

Her son could say something...

That must be quite hurtful. I think you're right not to say anything though.

ANiceSliceofCake, I'm like that. I can understand the keeping a book as I worry sometimes if I have given one more than another. I have 4 kids, 3 GC, 3 nieces and nephew and I can't even remember great nieces and nephews. I'm thinking of stopping birthdays and just giving at Christmas and saying I am giving more but just once a year. A lot easier I think.

This would bug me too but then I'm a stickler for fairness, and have a list as long as your arm of the inequalities in the treatment of DH and our DS in comparison to SIL and hers.

Not defending it but could she see it as an even split by branch of family?

Assuming dn is an only child, then each branch got the same to share between however many gcs in that branch...?