Worst service

Disappointment would be an understament honestly, for some odd reason i stopped receiving SMS's of all my transactions . I went to a branch and I was assisted. A few days later the SMS issue started again and now it was accompanied by my cell phone banking not working. went to a branch again and I was assured that the issue is completely is resolved. here I am now and I am not receiving any SMS's and your call center tells me to check with my network provider. How??? This can't be because I am getting other notifications from other banks, How am I being charged for SMS's and not receiving them. This has really become daunting and frustrating