We do not believe that our existing working capital and our future cash flows from operating activities will provide sufficient cash to enable us to meet our operating needs and debt requirements for the next twelve months. Our revenues decreased significantly since the fourth quarter of 2020 due to the termination of the Amazon last-mile business. Additionally, as discussed elsewhere, during the nine months ended September 30, 2021 due to the termination of the Amazon Relay Carrier Terms of Service between Amazon and Shypdirect, there has been a significant decrease in cash flows from operations. We are seeking to (i) replace its last-mile DSP business and supplement its mid-mile and long-haul business with other, non-Amazon, customers; (ii) explore other strategic relationships; and (iii) identify potential acquisition opportunities, while continuing to execute our restructuring plan, commenced in February 2020. In connection thereto, in January 2021, we completed the asset acquisition of DDTI and in March 2021, we completed the acquisition of Cougar Express, as discussed elsewhere.
Additionally, we are seeking to raise capital through additional debt and/or equity financings to fund our operations in the future. Although we have historically raised capital from sales of shares of common stock, the sale of Series E preferred stock, and from the issuance of convertible promissory notes and notes payable, there is no assurance that we will be able to continue to do so. If we are unable to raise additional capital or secure additional lending in the near future, management expects that we will need to curtail our operations.
