@fiydwi I believe you are wrong because the insurance was on auto renew there was continuous insurance in place. The insurance, when cancelled using the 14 day cancellation clause available under consumer law, does not retrospectively cancel the period for which the insurance was in place. This is what the CAB say on the matter. Best not to guess these things but look them up using good sites from which you know the provenance, as most posters are wrong.
Cancelling during the cooling-off period
You may want to cancel an insurance policy if you have just bought it and have changed your mind. By law, you have a minimum 14-day cooling-off period during which you can cancel the policy for any reason. If you’ve bought life insurance, the cooling-off period is 30 days.
The cooling-off period starts from when the policy begins or when you receive your policy documents, whichever is later. You should get a refund of any premiums you have already paid. However, your insurer may take off a small amount to cover days when the policy was in force. They may also charge you a small administration fee.
Some insurers may give you a longer cooling-off period. If you’re not sure how long your cooling-off period is, you can check the terms of your insurance policy.
If you want to cancel your policy during the cooling-off period you should contact your insurer as soon as possible
The right to cancel during a cooling-off period does not apply to travel insurance that lasts less than one month.