Settings required for PTCL DSL modem KASDA - KW5815U

hellow guys I have just received my dsl modem I connected it to my landline and internet is working fine however when I tried to access modem through 198.168.1.1 using admin/admin it says invalid username I tried to contact dsl guy but he didn't replied to my sms or calls

Now I want to do it myself but if I reset modem all settings required to sync this modem to PTCL server will also be lost So is there anyone who owns this modem or knows what type of parameters I have to provide....

It would be really appreciated if someone could provide screenshots....

modem KASDA - KW5815U

ptcl-router-kasda-kw5815u-box-pack-paktr

THanks

username admin and password is the last 5 digit of your modems serial number. look at the box yr bottom of the modem for serial number.

i want the configuration settings for smart tv for modem kasda kw5815u plzz