Bandwidth Limit on unlimited packages of Broadlink Internet

During some recent changes with website look and user's control panel, Broadlink has also changed in its one of the terms of Unlimited package. Now they inserted a term called "Fair Usage Policy (FUP)" under which speed will be rationalized once data allowance for each service plan is reached. It means now they are limiting unlimited by the limited bandwidth, which is bad news for downloaders. However for normal user, they may never exceed their limit. They also have this message on their website 

Broadlink may further rationalize your speed, suspend or cancel your service in each case without any prior notification.

The price of unlimited packages are: (Excluding tax)

Plans (Unlimited)	30 days	90 days	180 days	365 days
256Kbps	899.00	2562.15	5016.42	9953.43
384Kbps	1348.5	3843.25	7524.63	14930.15
512Kbps	2700.00	7695.00	15066.00	29893.50
960Kbps	6742.00	19214.00	37620.00	73622.00
* These Plans have a sharing ratio of 1:4			*  Fair Usage Policy (FUP) applicable.

256kbps: 25GB, 384 kbps: 38GB, 512 kbps: 50GB, 960 kbps: 100 GB. Thus, once the customer’s data allowance under that plan in which they subscribed has reached, their speed will be rationalized to the following: -Under this * Fair Usage Policy, the usage allowance for each service plan is set as follows: -

256 kbps: 32 kbps; 384kbps: 48 kbps; 512 kbps: 64 kbps, 960 kbps:128 kbps.

Thus according to new terms, if you have 256 kbps plan you have limit of 25 GB downloads/uploads for that month and after the limit is exceeded your speed will be decreased to 32 kbps for the remaining days of  that month and so on for other packages.

 This may sound unfair for users because what they are selling is "Unlimited internet"  and they actually have limit on it. This also has bright sides, the user who is excessively consuming bandwidth and eating the overall bandwidth of network will be filtered by this new rule.
I have also noticed the speed of internet has increased by 75% to 100% by recent changes. I don't know the actual reason for greater speed, either they actually have increased speed or most of users are still facing problem to connect internet and I'm getting their speed.