Hi Ali,
If the calculation you have received is a P800 calculation advising you have overpaid income tax under PAYE then currently only the individual can claim a repayment via BACS
The repayment can only be paid into the individals bank account.
Any repayments to be made to agents or nominees then HMRC must issue these via Cheque.
Without access to your records we are unable to see what was received in connection to the Hawkshaw Ltd but if you are concerned we would recomment you contact and speak to HMRC please see link:
Income Tax: general enquiries
Thank you.