Deceased estate(pension grant)

I went to ZEERUST POST OFFICEmake an enquiry 1st about the deceased estate(pension grant) for my uncle who passed away on the 23,because i know there is a high possibility that it was already loaded for payment month end...but i could not access it because we were unable to find his pension card at home...so i requested i be assisted in blocking the card because we didnt want to find ourselves in a position where someone else apart from family access the funds..i was then told to come and check if the funds are available on the 3rd...to which upon arrival i was again told to come on the 15th to no avail..but when i check the status of the account it says active..so i am not satified with the service i was given..nothing prooves so far that there is nothing that was loaded into that acount between the said dates,except for word of mouth which i cant rely on