Poorest Service EVER!!

I own a few Old Mutual Shares and I am trying to update my records via Link Market Services. I was advised by Link Market Services to mail a copy of my ID, Change of Address Form and certified copy of my telephone account to PO Box 10462, Johannesburg. I duly mailed these documents per registered mail and it was delivered by SAPO to Link Market Services on 24th March 2015 at 14:33. Since the 24th March I have sent numerous emails (to [Email Removed] requesting confirmation that the documents have been received. The only response I've received is that they will check with their mailing dept. It has now been THREE WEEKS since SAPO delivered the registered letter to them but they are still unable to confirm receipt..<br> Terrible Service. Obviously they are incapable of doing the simplest tasks. Pathetic. <div><br></div><div><em>(Supplier name changed from Old Mutual to Link Market Services by Hellopeter.com)</em></div>