In the event the development plan as submitted contains variations from the development plan given tentative approval, Borough Council may refuse to grant final approval and shall, within 45 days from the date of the regular meeting of the Borough Council or the Borough Planning Commission, whichever first reviews the application next following the date the application is filed, so advise the landowner in writing of said refusal, setting forth in said notice the reasons why one or more of said variations are not in the public interest; provided, however, that should the next regular meeting occur more than 30 days following the filing of the application, the forty-five-day period shall be measured from the 30th day following the day the application has been filed. In the event of such refusal, the applicant may either: refile his application without objected variations or request a public hearing on his application for final approval. Either action shall be taken within the time which the applicant was entitled to apply for final approval or within 30 additional days if the said time already passed when the applicant was advised of the denial. If no action is taken by the applicant, the plan is deemed to have been abandoned. If a public hearing is requested, it shall be conducted in the same manner prescribed for tentative approval; (NOTE: See Ch. 21.) but the written communication shall either grant or deny final approval while in the form and contain the findings required for an application for tentative approval.