Home 2 storage - bad service - dont use them

I cancelled my contract with home 2 storage in December they then billed me for January and said they never received my letter I then paid for January and cancelled again they then advised that I will receive my refund the end of January latest 10th February I still have not received anything I email I phone no one even replies to my emails. I would just like to advise other people looking for storage units to never use them cause there service is really terrible for 8 years I paid them on time every month now they just ignoring my emails