Avoid Standard Bank - Service really terrible

I spent 4 hours at Standard Bank Heidelberg yesterday to obtain money from my account. I was advised to download the Standard Bank App and it will enable me to do a payment before end of day yesterday. After downloading the app I tried registering for hours - I get to the point where I have to put in my cell number. BUT NO LUCK - it kept saying "security issue with my profile" I phone the ***** dept and they said it is normal and I will be able to register this morning. NO LUCK this morning. I phoned another number of Std Bank and NOW I'm told that there is a hold on my number and I will only be able to register tomorrow (the 24th of Dec) after 13h00. My question is WHY do you put a hold on a customer's number when they try and register with the APP???????? The customer services lady DID NOT advice me that this will happen. I really think STANDARD BANK is just getting worse and worse!!!!!!!!!!!!