If you are struggling due to loss of earnings because of Covid, you can apply for a grant from Machynlleth Corona Solidarity fund.
Local charity Advice Mid-Wales is well-placed to offer advice and contacts.
Lots of other resources are available. Many of the ones below are from a larger list of resources from Liz Saville Roberts AS/MP.
Coronavirus and claiming benefits
Universal Credit
Statutory Sick Pay
UK Government
Problems getting to or topping up your prepayment meter
Citizens Advice
Debt and coronavirus
Step Change, Debt Charity
Coronavirus and your finances
Step Change, Debt Charity
Coronavirus, claiming benefits and SSP
Step Change, Debt Charity
What help is available from creditors
Step Change, Debt Charity