Failing support

Although during my contract period RainOne did not disappoint. They failed to support with the last step. I cancelled my contract and moved to new provider, they did not manage to port my number in time/before my contract with Rain was ended. Now my number can't be ported to the new provider, and when contacting Rain they just say sorry but i have no active service with them. So I am now sitting with a mess with vast implications as your mobile number is an essential part of our daily living (banking, providers, key contacts...). And there is no further effort for support (so leaving with a mess).