What date did they move into the Property & when did the Tenancy end?
How long was the initial Tenancy Agreement for?
Did you pay a Deposit/Holding Deposit for the Property?
Exactly what Notice of Arrears was given and when(what date)? (if for rent arrears)
Are they still in the Property or have they ended their Tenancy as per the Notice requirement to end that tenancy?
Is the Claim for Rent Arrears/Damages etc.?
Have you sent a Subject Access Request (SAR) which is free(due to GDPR) to the Landlord/Letting Agent asking for 'ALL DATA'?
Don't touch them owe me £500 since January 2019 make excuse after excuse. Seem they always have software problems sending money out. Keep saying they will call back or email nothing been chasing it now for 6 mths the phone staff always have the same banter we will chase it up and get back to you then nothing!