New shower tray has a blister

[britishboy7]

We had a new shower fitted 4 weeks ago, this exact one (with tray):

https://www.plumbworld.co.uk/diamon...-right-hand-entry-19489-1254417-19489-1254417

If you scroll down the page you'll see the shower tray details. Last night I noticed a blister on its surface, it feels hard to touch so wont pop (hopefully), any ideas? its infront of the lynx bottle, size approx of a beer mat I guess

Last thing I want to do is have it all out again!
Cheers in advance

 

[sxturbo]

You need to speak to the supplier.

It is possible to carry out repairs with the tray in situ.

But first point of call is speak to your supplier / fitter