Hi there!
Let's follow your example:
If you sign up at Coinplay with promocode TGF and make an initial deposit of $200, you will have $200 in balance. If you wager your initial deposit 40 times within 30 days (i.e $200x40 = $8000) , you will receive 125% Welcome bonus, i.e $200x1.25 = $250.
Here are the complete rules for getting Welcome Bonus: https://coinplay.com/ru/information/rules/7#1
As for free spins on Zero day:
Yes, the money you get from free spins on Zero day has to be wagered x40 times.
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