Set default functions. Fix sms reminder and functions

Job ID: 37180829

Budget: $77 – $88 USD

Please read all carefully. I already installed in a "sub.domain" a php script for a restaurant waiting list. Due to a bad experience in this platform with a coder who made a very bad job, I need to fix sms reminder function and set/fix the following functions:

A). Set users and admins default native functions. Yes, the functions are already created because are native functions.

B). Need to replace the SMS notification reminder for reservation (native function) for a sms notification in the moment of the reservation has been made and include in the bottom of the sms the URL for cancellation of that specific reservation. The url cancellation is a native function.

C). Need fix this, when SuperAdmins active or inactive functions for admins, only just a few functions take the changes. Same situation happen when Admins active or inactive functions for their users, only just a few functions take the changes.

D). Give to Super admin dashboard access to all the native functions. At this moment have incomplete access.

Please note the following:
I am not a rookie on this, I have more than 15 years of experience and that's why the scope of work is very well explained to avoid confusions. To avoid confusions, I give additional explanation based in the questions of the ones who bids just to avoid misunderstand with the scope of the project. So, feel free to ask. Yes, I have knowledges in programming, but this time I need some help because my hands are full of jobs. Yes, is easy recognize fake profiles, fake reviews and unqualified candidates. Yes, more jobs available if this task complete satisfactory. This job have to be complete in no more of 5 business days.