Implement the sale of promo codes on the site

Hello, you need to implement the sale of promo codes on the site. (Generated the code, sold, recorded in the database and expiration date).

Billing is temporary for now, which is simpler. Then well hang additional payment methods.
the opportunity to check whether the promo code is valid, and whether it has not ended.

Stack: Php, laravel, symfony

Conditions:
1) Payment upon completion of the task or once a week depends on which comes first.
2) There is a written clear technical task
3) Work through Hubstaff.com tracker
4) Communication in telegram
5) You need to work at least 4-5 hours a day.

In the response, specify:
1) Is there experience with the required stack
2) Write "I agree to work on the tracker"
3) Rate per hour
4) How many hours are you willing to work in the next week
5) Time Zone
6) Username in telegram

IMPORTANT: All work only through the HUBSTAFF tracker (I will provide access). We dont want to follow you, we want to pay you honestly. Payment is strictly on time on the tracker. If you want to work with us, indicate in your response "I am satisfied with the work on the tracker" (check on p o b o t a) and necessarily the desired hourly rate, do not forget.