No help!!

I have read a few experiences here where Xneelo support put the solution on the customer to resolve. They did the same with me. I have a Managed Wordpress site with them. I can't backup my site, I can't backup to "Staging", I can't work in "Staging" and I can't restore my website. The problem is blamed on my plugins, of which I only have a handful, yet my site, when it is up, works. Sorry a website at the end of the day is just a bunch of files. I honestly don't see how my plugins can cause this problem. More to the point, Xneelo support tell me the plugins are a problem, but I must work out which one it is! Really?? If I could work in "Staging" I might be inclined to figure it out, but I must take a working e-commerce site and disable plugins till I find the bad one...Time for me to find a new hosting provider!