Hi AnitaAlice Sandall,
We are sorry for any distress the reduction in your allowances may have caused, as well as the wait you've experienced in receiving your repayment.
To allow us to review your code and progress your repayment as quickly as possible, please contact us by webchat or phone here: https://www.gov.uk/government/organisations/hm-revenue-customs/contact/income-tax-enquiries-for-individuals-pensioners-and-employees
Income Tax: general enquiries
Thank you.