Music direct

[Plzzz]

Here is something interesting
I bought an album as Advertised Shelby Lynne 200g 33rpm
It got delivered I opened it and immediately thought hmm this seems light for 200g and also could not find anywhere at all any thing about 200g.
I contacted music direct.

There responded by say sometimes they change to 180g and offered me 20% discount. They also say they don’t make the record and don’t have control.

My question is isn’t this false advertising what should I do your suggestions please
Regards Paul