A Vodafone customer is seeking a refund of £217.77 for a postpaid number closed in 2019. Despite multiple attempts to resolve the issue with Vodafone and the Nodal officer, the refund cheque has not been received, and the company is rejecting provided proofs. The advice given is to first issue a formal legal demand notice via registered post or a lawyer. If Vodafone still fails to comply, legal options include filing a recovery suit in civil court or a complaint with the District Consumer Forum for deficiency in service and unfair trade practices, claiming the outstanding amount with interest and compensation.