Hi , has anyone had any problems with newsagents keeping winning lotto tickets and claiming prizes themselves?

we took a winning lotto ticket into the newsagent and asked him to check it , he said we had won 42 pounds , great we thought and walked out . a week later we checked our numbers to find we had won 6 numbers . same numbers used for last 3 years every single week. when we went back to newsagent he said he would look for it , but we found out the ticket had been claimed by one of his family members , now camelot and the police are involved , and instead of us opening shampagne we are all in limo waiting for the out come