If you change your name when you marry, you have to change all your official information including bank details.
Fast forward a year (not a huge amount of time) and Aunt/Uncle Whatsit send you a christmas present in the form a cheque...in your maiden name.
The bank will not accept it. Despite the fact you have been hitherto known by that name since birth there is no facility to acknowledge that you are not trying to defraud/launder and in fact just want to cash a cheque from your family.
So, for years, all across the country (world?) hundreds of married women are posting back cheques to friends and family, telling them to write it out again in their married name and then post again. It must happen quite a lot especially in the first few months. All because of banking policy.
Is this mad? If the same scenario were being faced by men do you think that policy would have changed by now? Grrr. And no you cannot have two accounts (one in each name) so there is no option but to send the cheque back.