harrasment

i was in hospital and my phone had a speaker problem but african bank called me a record 30 times a day!!! is this normal?? then i got a call from my mother that they called her a record 9 times in a day!!!! and my mother was not even aware that i am in hospital....if i count their calls from monday 4/10/15 to friday 9/10/15 they are probably more than 100...i had my tablet with me and they have my email address which they can use to contact me but they resort to stalking. please african bank have some style...this is so unstylish to call the same number 20 times a day even if you can see they is a problem with the cellphone you are trying to call