services to Dynamex' customers as may be required from time to time, such services to be provided in accordance with the service standards set out in Schedule "A" attached hereto, which service standards may be amended from time to time; 3 - 3 - v) In providing such next day or multiple day services, agrees to provide customer service, dispatch, pickup and delivery, tracing and tracking, together with joint sales and marketing efforts with Dynamex, and will invoice Dynamex for the services provided at the rates provided for herein. 3.2 Subject to the terms and conditions hereinafter set out, Dynamex agrees to do the following: i) Offer overnight courier services to its customers under the Dynamex name and trade-mark; ii) Tender to Purolator all overnight courier service requests that it receives; iii) In connection with such overnight service requests, will handle the customer request, will dispatch the pickup request to Purolator, will be responsible for billing the customer for the service and collecting the revenue and provide such sales and marketing service, in conjunction with Purolator, as may be necessary; iv) Will provide its sameday transportation services to Purolator's customers as may be required from time to time, such services to be provided in accordance with the service standards set out in Schedule "B" attached hereto, which service standards may be amended from time to time; v) In providing such sameday services, agrees to provide customer service, dispatch, pickup and delivery, tracing and tracking, together with joint sales and marketing efforts with Purolator, and will invoice Purolator for the services provided, at the rates provided for herein. 3.3 For greater certainty, it is understood and agreed that either Party, in providing the services referred in 3.1 and 3.2 above, may agree to a variation of the services to be provided,