Can I claim the rebate for the Yuran Langganan Jalur Lebar because I pay maxis fibre RM118 monthly?

Guys, starting early this year I've became taxable by LHDN already. I already registered with e-Daftar got the SG no and Cawangan Wangsa Maju. This one is because requested by my employer.

Then I did some research to understand more of this income tax process but there is so much information, and it is scattered all over the web unorganised. I just want to know how to get back the relief for what I overpay every year. I've heard of e-filing but don't know what is the purpose, some said can register online, others said has to go to their office.

Basically, how should I get started?

I just paid for LASIK surgeries, can it be considered as tax relief under medication?