[Casino raises wagering requirements]

So has anyone else seen a casino raise the wagering requirements on all bonuses offered to you after a somewhat large withdrawal being made? 

Ive been a player at this online casino for over a year now and up until now  I have had no issues with making withdrawals or with wagering requirements being raised after.  The casino offered  awesome bonuses ex: 250%-350%  of deposit with 30X playthrough, perk points, fast bitcoin withdrawals, great game selection, etc.  Which is why I stopped playing at other sites and became a regular player at this casino only. 

I honestly feel like I am being scammed,  after making my last recent withdrawal my wagering requirements went from 30X to 60X?!!!???? Thats ridiculous, like Im a player who makes several deposits on daily basis so besides the fact that I made a large withdrawal, and the amount of money I deposit in a 30 day period every month compared to my  entire withdrawal history on the site. I just feel very misled and scammed since they are known for prioritizing  their "Fair Play" and being one of the most highly recommended online casinos.. 

I even tried contacting live chat about it but they were ZERO help, and couldn't even explain why it happened. So then after this i start looking into there T&C policy and the only thing I could find that could be a possible reason as to why it would have been raised is if:

Quote

Bonus programs are intended for recreational players only. Professional players or players considered, in our sole discretion, to be abusing the bonus system by any means may have bonuses revoked and be subject to further sanctions.  Bonus abuse may be defined as (but not restricted to) clients cashing out for the purpose of re-depositing, depositing on top of an existing balance, or creating new Accounts that they are using themselves. Sanctions may be in the form of increased rollover requirements or loss of bonus privileges altogether for the offending Account as well as any linked Accounts. We reserve the right to restrict eligibility for special offers and bonuses when necessary. This includes but is not limited to placing geographic restrictions on match bonuses due to bonus abuse.  

I dont understand how I would be viewed as abusing the bonus system, if I make several deposits daily and have only made 4 withdrawals in the past year that  I have been playing at this site???  

Would it be a good idea to file a complaint for this? I just feel like with the amount of money i deposit, they would care about losing a player due to raising wager req, and making it almost inevitably impossible in having any fair chance of winning?