Openserve not openly helpful

Had Openserve for two months, in the beginning it was great. Started noticing that I had to reboot the router every three days. Keeps searching for signal. Logged a fault with Openserve and they promised they would send a technician out. That was two weeks ago. Called them today and the responce was that if a fault does not reflect on their side then they won't send a technician out or do anything about the issue. Pathetic customer service, and they expect you to pay?