By Dave Burke Widows ordered to pay nearly £3,000 or face being kicked out of the UK are legally challenging the “shameless” charge. Under current rules it costs £2,885 for bereaved partners to obtain indefinite leave to remain – a sum that rose by over £400 last year. Fifty MPs called the fee “irrational”. They say granting leave to remain costs just £491. In a heartbreaking letter to the Home Office, three widows wrote: “We have all made the UK our home, have worked, paid taxes and paid visa application fees. It is not our fault that our husbands have passed away.” Campaigners have now been …