Credo Mobile review: Phone not working after network upgrade. No customer service unable to speak to anyone directly. Situation has still not been resolved.

Four days ago, we installed new physical SIM cards that were required due to a “network upgrade.” after doing the upgrade, one of our phones would not work, unable to receive or make calls. After over 40 emails and hours of being on hold waiting to talk to customer service, the phone is still not working. It is impossible to talk to anyone in customer service! Who has the time to be on hold for hours at a time?! When we try to call out on that phone, it calls credo directly. When people try to call our number, it says that the “the person you are calling cannot accept calls at this time. “ they have sparsely and tardily responded via email with the same suggestions over and over again, which have done nothing to correct the problem! My partner is traveling currently with a phone that is not working due to credo’s “network upgrade.” they have the worst customer service of any carrier i’ve ever dealt with. They are impossible to reach by phone and are very slow with email responses with the same suggestions that do nothing to correct the problem! Very disappointing of them to not make this a priority to correct this especially when my partner is traveling with a non working phone! I’ve been a credo customer for over a decade and this is how they treat loyal customers?! Not acceptable! We will be changing carriers, if this ever gets resolved…so disappointing and frustrating! The absolute worst customer service i’ve ever encountered with any company…