I got one just today - which was surprising, I hadn't exactly kept track but normally I figure I get the 5 pretty early in the month... apparently not this time. Of course, it helps to check the market pretty regularly. As for the daily pack thing - are you sure it was the same pack that changed that much in price? 

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Mini mix pac. But yea dont have a pic of the one I was getting before but it was less stuff but more likely for me to buy. Next time it goes to 20$ make sure to screen shot And i know it's like a dont want the whole meal and large sized I just want the burger 

Okay, yeah, you do get offered more expensive packs once you start spending. I thought you meant the exact same pack had gone up that much in price and then down again, which seemed unlikely. 

If you refresh often ( hourly free refreshes) you should generaly get all  5 gems before the 15th ( then again it's not guaranteed as it's RNG ) but having played the game for almost 2 years and being compulsive about clearing red dots, that is my experience.  I often get them all by the 10th.