Account suspanded twice - no notice

I received an e-mail from Veno Chinnsany on 31/3/2015 saying that my payment was rejected as I was asked if my details have changed. I immediately rep**** indicating that my details have changed and asked to be contacted for new details. I got an out of office response from Veno asking me to contact Barbara. I e-mailed Barbara and did not get a response. instead my contract was suspended, without notice. Highly annoyed, I contacted Barbara on her landline and gave her my new banking details and asked her to unblock the account. She managed to do that. Upon Veno's return from leave, I received a mail saying that I did not respond to her mail regarding the payment rejection dated 31/3/2015. i rep**** saying that I provided the details to Barbara and Veno rep**** saying that she did speak Barbara after sending the mail to me. So I assumed all was in order...until today when my account gets suspended AGAIN without any notification. I am highly annoyed as this is my primary contact number for my kids' schools, internet banking etc. This is pathetic service and hope it can be rectified immediately. maybe someone that can read and write should call me for my banking details this time.