Dirty Pool

I think I've been dudded. I posted my acceptance of the issue with my cheque in the provided Computersharefor reply paid envelope for my entitlement and oversubscription from Devonport Tas on 3 October. That should have been more than enough time for Australia Post to have delivered it to Computershare's Melbourne office by 5 pm on 11 October. I was hoping my acceptance for the oversubscription would be granted but I was staggered when instead my cheque was returned stating my application had not been received by the closing date and time. I simply don't believe it. The share price of BSM was clearly in the black at the time and my acceptance of the offer was obviously a good decision. If Computershare had properly date stamped incoming mail my acceptance must have arrived in good time. Something smells badly here.

Has anyone else suffered the same treatment?