Huawei — jio 4g network issue

Address:

Lucknow, Uttar Pradesh

Sir maine jun 25- 2017 ko honor holly 2 plus liya tha. but mere handset me jio 4g network nahi rahta hai .jab hum city me tower ke just 100-200 meter duri par rahte hai to network aa jaata hain jaise hi hum waha se jaate h ki network chala jaata hai maine 1 baar service center lucknow me bhi dikhaya lekin problom wahi hai . plzzz sir meri help kijiye ...