If you started your rental agreement after oct 2015 the following criteria apply:
Your landlord must follow the tenancy deposit protection rules.
They can't give you a valid section 21 notice before they give you required information about the tenancy deposit scheme used.
A section 21 notice is invalid if either of these apply:
your deposit isn't protected in a tenancy deposit scheme
it was protected more than 30 days after your most recent contract started
If your landlord breaks these rules, they can only serve a valid section 21 notice if they return your deposit first.
- Check your tenancy-related documents
a section 21 notice can be invalid if you receive it before your landlord gives you a current copy of the following documents:
gas safety certificate
energy performance certificate
‘How to rent: the checklist for renting in England’ - a government produced guide
This doesn't apply if your tenancy started before 1 October 2015 and has not been renewed since.
If any of these things apply to you,then do nothing would be Shelters advice. Wait until you are summonsed to court and then attend court (some months later, but within six months of receiving notice from ll) and state you do not have a valid 21 notice due to lack of ....[any of the above].
So, your depositust be protected under the scheme, within 30 days, and you must have received your gas safety cert, performance report, and 'how to rent' doc, all before or with the 21 notice. If not, sit tight, and keep looking and get on the housing register and keep bidding.