Princess Star Casino - First deposit bonus spins of 25 starburst spins not issued as advertised

i deposited 20 euro at princess win on January 07, 2017 17:07. my 25 free spins on starburst were not issued with my first deposit bonus as per their promotion "Boost your play With your first deposit. All new players making their first deposit at PrincessWin Casino will get a 100% bonus up to €100 + 25 FREE SPINS in the STARBURST game. I have tried to connect to them via chat however they have not been been on and i have not seen them on at all since i have registered my account. i have sent at least 4 emails and left messages asking them to apply my 25 free spins on starburst however it has gone unanswered. it has been 10 days since i have made my deposit and i have checked each day at various different times hoping to chat to them via their live chat but they are "
Our agents are not available right now. Please leave a message and we'll get back to you"

i have left messages and and also submitted various contact form which go unanswered.

i dont not know how to get a reply or a response from them relating to my 25 free spins from the first deposit. I have met the required necessary requirements in order to be entitled to my 25 free spins but it seems that i have deposited my 20 euro and nothing has been done in relation to assisting with players inquiry. it should not take more than 10 days to respond to a player's request ???

below is evidence of my deposit made.

Date Status Action Payment system Amount
January 07, 2017 17:07 Accepted Deposit Credit Card 20 EUR

in their terms and condition , The minimum deposit of $/€20/0.05 BTC is required to receive the First Deposit Bonus.

The First Deposit bonus issued is valid within 2 weeks period from the date of receipt unless otherwise stated in the specific promotion. Any remaining or unused bonus at the end of the stated period will be removed from the player’s account.

The casino has the above listed in their terms and condition.

I wish to seek a refund from princess win casino for my deposit made in the amount of 20 euro as what they has advertised in their promotions section has not been honoured and i have made various attempts in order to allow the casino to respond of provide some sort of reply in relation to my account and deposit.I have been very fair and believe this casino is happy to receive player's deposits but does not assist in any account maintenance.

the promote that their offer live chat however i have yet to see that their casino offers live chat.