4g network frequency problem in sylhet sadar & low speed

Sim kinar por theke problem face korchi kintu bigoto 3 mas jabod problem besi face korci amr elakay amr basar vitore network 4g up down hoy ar speed problem game khelte parina ping high and voice kete kete ashe same messenger imo call e o problem kindly amar basar vitore 4g full thakbe and net e kono somossa thakbe na tar somada korun doya kore keu apn reset set restart er kotha bolben na ajaira and muloto 4g thake na amr basar vitore 4g chara game khela jayna 4g 1 dag 2dag evabe up down hoy voice call kete kete ashe basar vitore o bahireo ping high thake pubg call of duty khelle etar somadan chai niche amr adress full dewa holo

Location (sylhet Sadar) area (Dargah mahalla) (jalaliya shorkari prathomik uccho biddaloyer pichone basa) number  01303730071