#servint vps

I've been using Servint VPS hosting for the past few years and have been very happy with them. But unfortunately I have been experiencing problems for the last couple of months. My forums are regularly going down for a few minutes at a time and I have been submitting tickets to Servint. Servint replied suggesting that my sites aren't going down. Yet I tried the sites on different PC's at different locations and they have been down. I started a thread on one forum and got confirmation from quite a few members that they experienced downtime. Servint have now accepted that there has been downtime. I asked Servint for suggested solutions and they didn't provide any I specifically asked if I needed to upgrade the VPS package, they originally said an upgrade wasn't necessary but 4 days later said that I did need an upgrade. I've upgraded twice in the last few weeks and as of today I am on a Super VPS @ $199 / mth - Servint have confirmed that they have upgraded me to this package But my sites have been down for about the last hour or two In my ticket today, Servint have said "the longest your sites were down was 5 minutes". This is simply not true, and even if it was true, regular 5 minute downtime is not acceptable in my view. I feel that no one at Servint is taking my issues seriously. They had repeatedly told me that there was no problem but now they admit that there is one and they don't seem willing or able to fix it - this has been going on for a couple of months. I ask "what am I doing wrong", because I see such great reviews of Servint here on WHT and I don't understand why I'm not getting the same level of service. I have very limited technical knowledge - should I be using another type of hosting that provides more in-depth tech support? Is it possible that the problems I am experiencing are outside of Servint's control and that I am expecting too much from them? I want to stay hosted with Servint, but I'm having great difficulties at present. Given the great reviews I see of Servint, I'm actually concerned that they will tell me that my business is not worth the trouble and that I should host my sites elsewhere. What should I do?