Also i had the plan to put the router at staircase, where it have access to ground and 1st floor... is this a good location?

it's your right to complain
but it is not scam, just due to information asymmetry, price discrimination
just different offer/promotion at different time
have you ever lodged complaint to an airline company about the higher price you paid
or a cinema for the different ticket price between a new release movie vs the one that is about to be taken down?

Can download JAV megapacks 3 times faster. Likewise with Onlyfans siterips.

Just installed unifi  today ... how do I remove @unifi , I am not paid to market their product.

...
Changing to other isp doesn’t seem like it’ll help because it’s all the same cables for landed areas correct? What else can be done? I can’t even get them to bill me pro rata. Since the turn of the year. I think I’ve not had internet for 8 days all together.

Maxis got promotion for migrating Unifi user
300mbps free for 6 months, then RM149 for the rest of contract