wordpress Web development

I need some changes to an existing website. need set restrictions on plan categories. site url [login to view URL] work : Required 4 type Employer and 4 type plans for job seekers, Plans for job seekers  Tier 1  = Free Tier 2  = 999 Rs Tier 3  = 1999 Rs Tier 4  = 2999 Rs Types of Employers Type 1 = they can register online and buy limited access to tier 1 job seekers only Type 2 = they can register at free of cost but activation after verify genuine jobs ( this plan only for reputed Indian companies) they want access only to Tier 2, Tier 3, Tier 4 job seekers, Type 3 = This plan for Middle East reputed companies , free registration,  activation on approval basis , access only to Tier 3, Tier 4 Type 4 = This plan for reputed companies in worldwide , they want access only to Tier 4 Type 2,3,4 Registration request only needed,  registration will do from back end after approval Plan Prices include GST [Removed for encouraging offsite communication which is against our Terms and Conditions -Section 13:Communication With Other Users]