Laxmikant Sharma, a sub-broker, wrote to request that unnecessary charges of 149rs and 500rs taken from some clients' accounts be reversed, as some clients are no longer working. He also asked to be notified before any future charges are taken from clients so he can answer their questions. He provided codes for three clients - Er15s1, Er15s8, and Er3s1 - who were experiencing problems related to charges.