Cashe — Mail delivery issues

Dear team I am Manoj Paul, Registered mobile no. [protected], a regular customer. Now days I am facing issues with mail sending to your support and documents mail ID.
Whenever I am sending mail on your "[protected]@cashe.co.in and [protected]@cashe.co.in" it's being bounce always due to some of your mail id "SUMEETKAUR.[protected]@cashe.co.in" and one more id's mail box is full. So that whenever I am sending my requested documents to you for processing it's coming to my mail box not delivered.
Please look into this and do the needful.