baby bathtub (help!!!!!!)

Proud💁🏽Mom • Jesus follower 👣
Wich one do you use? I'm asking because I got as a gift "the babies R us under the sea". I try to use it like 3 times and it doesn't work. The slings slips and the bathtub it also slips, so I considered not safe at all for my baby. Sadly It can't be returned 😔😠. Because I received as a shower gift on July and their policies said that has to be less than 90 days if it have been used. But I call the CSR and submit the claim. And I'm giving them a bad feedback because it's not safe. 
Now I need a new one. Wich one do you recommend? 
Thanks.  
Update: they call me and send me a e-gift card for the price of the tub, because babies r us thinks that safety it's first. I really like the fact that they call me back and they said that the will send the claim to the manufacturer so it can be fixed. And I just lets them know that I'm no the only one with the problem.