Terrible service for long time customers

Beware of Afrihost. I have been with them for little over three years now, and even recommended their service to other people. Now however I would say stay away from them. Their service as of late is terrible. My Fibre connection was 250mbps and nothing went wrong. They bumped us up to 400mbps for free due to upgrades in the area, since then we have suffered with constant disconnects at random times, for random lengths, anywhere from 1 minute, through to 3 hours at a time. The support can only blame the customer, all they ever do is want you to test this, do that, now run this command. I have been working in IT for over 10 years, I do all the tests myself before I phone them, nothing on my end is the issue. I am now writing this as a desperate attempt to either get them to resolve this issue, or to warn you away from them. Do not trust them, they are not your friends, they will gladly take your money and provide absolute garbage service. GARBAGE!