****ting network coverage after changing data package

What a ****ty network provide. I decided to change my data bundle package and all of a sudden I dont have network coverage. I can hardly receive a text via WhatsApp all this coz I changed my package, I didnt relocate I'm still where I used to stay and used to enjoy great speedy network service I've been offline for days now yet im paying on time all this suffering coz I changed my package mxm trash im jumping ship ASAP what a waste