We may be able to help you - but you could have helped yourself - my last link will show you how.
Are there any error indications - flashing lights? If so, what are they? (Give the lamp number from left to right or top to bottom)
Does the machine heat up properly for the wash?
Best guess at the moment is a failed heater or maybe heater relay.
https://www.diynot.com/diy/threads/hotpoint-bwm129-stuck-in-the-wash-cycle.306164/
http://www.ukwhitegoods.co.uk/forumsphpbb3/viewtopic.php?f=34&t=62519
http://www.justanswer.co.uk/appliance/9hrsk-hotpoint-bwm129-washing-machine-not-finishing-cycle-no-power.html
acp, July 2017