They deactivated my cell number

I sent an email to [Email Removed] informing them that I would like to cancel my contract and asked how I can go about doing that. Nobody rep**** to my mail and did not give me any feedback. From Sunday I have not been able to use my phone because it's had no service since then. They cancelled my contract and DEACTIVATED MY NUMBER without coming back to me and giving me feedback and asking if I would like to keep my number or not. They have still not reactivated my number despite my many pleas with the call centre agents asking for my call to be prioritized as my number should have not been deactivated in the first place and I need to be contactable. Its a huge risk for anyone to not be able to use their phone.