Council tax bills have been reported as being accepted so together with your other proof of address that should cover it.
You can request a SAR here
https://www.gov.uk/government/publicati ... mmigration specifying you need the dates when you crossed the borders in the last 5 years.
Were you claiming benefits? If so, letters from the DWP dated in that time period will be OK.
From the guidance
https://assets.publishing.service.gov.u ... #page%3D16
Absences
You must check the available evidence to see whether an applicant meets the
residence requirements.
The following can be used as evidence of residence:
• passports or travel documents which have been stamped to show arrival in the
UK and entry and departure from other countries: these should be checked
against the list of absences that applicants are asked to provide on the
application form
• Home Office records
• if the applicant does not have passports to cover the qualifying period, other
evidence such as employers’ letters or tax and National Insurance letters:
o in such cases you should assess whether there is sufficient evidence to
show that that applicant has been resident in the UK during the qualifying
period, giving them the benefit of any doubt where claimed absences are
within the limits we would normally allow and there are no grounds to doubt
the accuracy of the claim
You must not normally accept doctors' letters on their own as proof of residence.
However, if nothing else is available and the doctors can confirm that they have seen
the applicant on a regular basis during the period concerned these may be accepted.
If there are gaps in a person’s evidence of residence and it is clear from the
information available that they could not have travelled, you must accept this.
Examples of this might include a refugee who has no means of travel or where
immigration records confirm continuous residence.
You must only count whole days' absences from the UK. You must not count the
dates of departure and arrival as absences. For example, a person who left the UK
on 22 September and returned on 23 September will not be classed as having been
absent from the UK.
An applicant only needs to have been physically present in the UK for the purpose of
the act. They do not have to have been ordinarily resident or domiciled here.
All advice comes from personal research and experience and should not be regarded as professional opinion.