Is Samsung Buy and Get promotion a ****???

In November 2018 I bought 3 Samsung products during their buy and Get promotion. I should have received 2 blue tier awards and one silver award. The award redemption forms for flights for a blue and silver tier were completed and forwarded end of January 2018. It was promised that I would receive a pin code within seven days in order to redeem my awards. When this was not forthcoming I called the call centre and was given a pin code for a blue award telephonically on 29 March 2017. I wanted to book a flight for 28 April 2018 but could not do so due to the week end and public holidays. When I tried to book on 03 April I was unable to do so due to the 4 week deadline. Samsung refused to make an exception in spite of their delay in supplying the PIN. They say they sent an SMS I February which I did not receive and I have not unsubscribed from receiving SMS'es. I am still waiting to receive my PIN for the silver award (Number: ********** 49) in spite of requesting this twice from Russell in their call centre. E-mails requesting this are either ignored or I get a reply asking me to contact the call centre which is futile. Is Samsung trying to frustrate me and not give me this award in the hope I will give up and so they do not have to keep their promise if this expires in a year?