GeForse worst communications company ever

Our Company has been trying to have our Wi-Fi sorted out by GeForce for a year now, when we moved to our new premises they where to access the premises and ensure we would be sufficiently covered by Wi-Fi, which they did not do, since we moved in it has been a constant problem. they came and assess the problem in November and quoted us for the Wi-fi extenders and we had to pay before it would be ordered, now 2 months down the line no communication from them at all, we cannot get hold of Olivia that is supposedly handling the account. there is absolutely no way we can get hold of her as she won't take our calls and she won't call back. GeForce is the worst company I have ever had to deal with.