Tikona — tikona app

Dear sir,
I am internet user from tikona. My user id is [protected]. I wanted to change my plan. Tikona advised me to download tikona app. I tried to open tikona app on google. Tikona asked me to fill details o[censored]ser name and emaild. I filled up these details. Although i filled up correct details still tikona message appears user name and email id are invalid. Upon this i sent email to tikona informing them i have given correct user name and correct email id. Still why tikona is saying why user name and email id invalid. I also informed them this is the same email id on which tikona sends bill me every month. I also informed tikona that user name and user id (Given above) are one and same as informed by tikona once. I also asked tikona what is my correct user name. My email id is dt 13th april 2020. Till date tikona is not bothered to reply me with the result i am unable to proceed.
Put up for writing to tikona.
Thanking you
Ravindra baji