UNFAIR TREATMENT

Good morning I have been calling and sending emails to old mutual rewards since the 13 Dec for them to give a voucher on my point that i have accumulated with them they asked me to send a copy of my ID & proof of residence I did that and they rep**** to say i must certify my id and as proof of residence i sent a copy of my bank statement they rep**** again by saying I must send a 3 months bank statement i did that and they said they will respond in 2 days to date no one has called or emailed anything and some of my point will expire by end of Dec.i really need that voucher because I have sent them all they requested from me