MAM's bottles

[princess_bump]

Hope this is in the right place, please feel free to move if it is
So we switched from Avent to MAM's about 6weeks ago and they have been brillant, never had any problems with them, we always used these ones: with the anti-colic bases:

https://www.mothercare.com/gp/produ...f=sr_1_7/026-6122760-3795648?ie=UTF8&mcb=core

So the other day we need a replacement valve and you can only get them off the website so i ordered some, along with a different bottles (because i really liked it)

https://www.mamonlineshop.com/acatalog/Silk_range.html - it doesn't have the anti-colic but wasn't too fussed as maddi does have colic. it was perfect when it arrived. so today i've steralised it etc and made up the water and have just come to use it and the bottom is bowed!? so it doesn't sit flat on the side and is all wobbly - i take it this isn't normal? i've just e-mailed them, but no response yet and i can't find the e-mail order
just wondering if anyone else has had this problem? or any ideas on what to do?
thank u all

 

[princess_bump]

talk about swift action - i have just had a reply from them, they are sending me a replacment and i just have to send the bottle back