*********** Service from staff

My son is at gym company Winchester Hills and I am trying to get hold of someone because I need to change the BANK ACCOUNT NUMBER for the Debit order to go off. I sent them an email on the 21st October and received a automatic reply that someone will get back to me. I have call Winchester Hills branch and left messages for the manager Nelisiwe to contact me but still nothing nor has anyone come back to me. I have also sent emails to the branch but with no luck.