"CUSTOMER SERVICE" = 0%

My husband signed a phone contract with Teljoy not to long ago. The device was locked due to "non-payment" ... However the account was paid and proof of payment was sent MULTIPLE times! We have emailed the proof of payment to the email address provided for almost 2 weeks! with NO ACKNOWLEDGEMENT or response from Teljoy. We have logged query after query on the contact form via the website, but until today not a single response. I am now sitting with a locked device I cannot do anything with. Attempting to go via the contact centre, on hold forever until eventually the call just gets disconnected. This will be week 3 of this battle. By far the worse customer experience I've ever come across!