Sadly dissapointed

Purchased gmedia premium to find out the mosaic module which could be used on my website is totally unresponsive. It looks fairly ok on PC but on mobiles is just unusable when lightbox is enabled. And sadly – I really need the lightbox.
Contacted the support, did not hear back at all, not even a confirmation that they have received my query. Contacted sales so I could get a refund, also – no reply, not even an e-mail that “thanks for contacting us, we will reply within xx time”.
No contact at all. I have opened a case on Paypal for a refund.
Sadly it looks like a complete waste of money. We have 2019 and when I have checked the modules, there is like 6-7 of them which are still “paid” separately, even if gmedia premium was purchased. Don’t know if I was expecting too much, but based on the fact, that in 2018 they have announced that it has been a year where mobiles are leading when it comes to web browsing (I can see the same on stats of my website), I was really hoping to have a nice gallery plugin which will be working great on PC and on mobile. Sadly – gmedia offers great modules, but if you will be looking for support, you might consider using a different one. Just selling the product nowadays (in my opinion) is just not enough.