The tax shall be itemized on each bill for telecommunications service in Prince George's County. Each vendor providing telecommunications service in Prince George's County shall collect the tax on behalf of the County and remit the tax to the County. Each vendor shall have the same rights against the user for the collection of this tax as for the collection of the telecommunications service bill. To compensate for the cost of collecting and remitting the tax on telecommunications service in Prince George's County, each vendor may retain one-half of one percent (.5%) of the collections remitted to the County in accordance with Section 10-192.06. Each vendor shall pay the tax and shall report upon such forms and set forth such information as the Director of Finance may prescribe. The report and payment of the tax shall be made on or before the fifteenth day of each month, covering the preceding calendar month. Any vendor who fails or refuses to remit to the Director the taxes imposed under this Subdivision shall be liable for the taxes due. Whenever a vendor fails or refuses to remit the taxes due or to make proper return to the Director of Finance, within the time and in the amount specified, the vendor shall be assessed the amount of taxes due, plus interest on the amount of tax due at the rate of one percent (1%) per month or fraction thereof and penalty on the amount of tax due at five percent (5%) per month or fraction thereof until paid, not to exceed a total of twenty-five percent (25%) of the amount of taxes due. The interest and penalty is collected as part of the tax. Whenever any vendor stops doing business or otherwise disposes of the business, any tax payable to the County is immediately due and payable and the vendor must within ten (10) business days make a report and pay any tax due.