Cannot contact anyone

I received an sms on 5 December stating my debit order was returned and requested to contact MFC which I did. The person I spoke to said I must speak to Ursula and put me through but the number rang and then went dead. I phoned back and the exact thing happened but I had asked for her direct number and email. I tried many, many times to phone Ursula and emailed her but now 4 days later still no luck. I phoned the call centre again today who told me the same things, speak to Ursula, I got Ursula's supervisor/manager's name, Eunice and given her direct number but despite trying many times to get hold of her I am unable to. I have received a further sms stating I must contact MFC because my account is still in arrears. All I need to tell them is to put the debit order through again but it seems getting hold of anyone is impossible! Please get this elusive Ursula or her senior or ANYONE to contact me to sort this out.