Disgusting Service

Having an issue with the rain network regarding my router. Our primary phones cannot connect to the wifi but the spare phones connect. Rain cannot find the issue for 2 days and keep telling me to reboot which I have done numerous times but does not fix the issue. All other devices connect except our main devices. I spoke to Dawn she tried her best to help me but couldn't she informed me I would get a call back from someone higher but I did not get that call. I called on day 3 because I'm still not assisted I spoke to Angelia who was rude and unprofessional to me as a customer I explained I'm writing an exam I need help Angelia put me on mute refusing to help me. I called again spoke to Raina asking for help she could not help me as well asked to be directed to a manager she can't push my call because they don't have lines to transfer calls terrible service mining from Angela and Raina. Dawn was was more helpful and more understanding... I asked Raina to transfer me to cancelation department she cant help me Rain don't want to help with my issue or to help cancel the wifi. I was told a line manager will contact me still nobody contacted me terrible and pathetic service this not the first time having an issue with Rain Network Provider this the 3rd time they disconnected me on purpose to upgrade my wifi this what happened previously before as well my ref no. ***4