I've rented a garage from my local council but swapped with

I've rented a garage from my local council but swapped with another tennant so we had gareges closer to our property's I rang council they said shouldn't do that but they'll sort a new tennancy ( which was never done and I have no proof of conversation 18 yrs ago ) the tennant I swapped with moved last August. So in Feb council forced entry into garage that I was using , but in other tennants name on opening they found 2 motorcycles and a garage full of my tools I use to and still use for buliding . They then removed ( cherry picked stole most of my tools and other things ) . Once this had been done they decided to inform housing officer there's good stuff inside garage. So housing officer got the police to trace the reg of my motor bikes. Once he found out who owed the motor bikes knocked on my door to let me know what was going on ( didn't inform me that council staff had grinded my hasp of and chiseled frame work of garage to force enrty neither did he tell me that coucil staff had removed my belongings some which eere brand new allegedly taken to local skips which I do not beleive ) . Since this as happened and I'd put in a claim for £950 of my belongings they contacted me to say due to my name not being the legal tenannt they will not be reimbursing me my removed belongings. Hope you can help .
Regards ***** *****