Need guidance on followup post mastectomy

Hi, 

Please I was diagnosed with early stage invasive ductal carcinoma of the left breast and had modified radical mastectomy in April 2018 as well as chemotherapy. I often had annual routine chest X-rays, breast and abdominal scan since then, however, I relocated to the UK in January 2023 and since then have been finding it difficult to connect to a breast cancer team for my continuous routine breast check ups. 

I will appreciate greatly if I could be directed on how to have a mammogram follow up please. It's more than a year now I haven't had a review. Thank you 

Warm regards,

Mary