You might want to give up, but if you are looking to buy wetwall panels, you should probably take a look online. Many of us stick to local stores so we can easily return items, but this often means selecting from poorer stock and thinner selection. Instead, I recommend you check out a company like Total Bathrooms.
They have a fine range of high-quality products that you can easily pick up, making sure you can have things like wet wall panelling fitted and installed for as much as 60% off the retail price. They helped me to save a right few pounds when doing up my bathroom, so, yeah, they are a good choice.
Do not feel like you have to buy local at an eye-watering price; shop around, and you should find an alternative.
