Terrible service from SADV

My router broke on Wednesday morning. I was on the phone with tech support from 5 to 6am. The issue couldn't be fixed and I was told someone else would contact me at 8am. They did not, and I phoned back. I was told the router is broken and it has been escalated, and I was going to receive the new router on Thursday. I phoned on Thursday and was told it would be deliverrd on Friday. I phoned again today (Friday) and was told it probably won't be today and there's no waybill number to track. Also, they don't deliver on weekends, so they have no idea when I will receive the router. This is the worst service I have ever experienced, and there is no way for me to get assistance.