Not only success but also failures are there in business relationships. Lost customer sales letters helps to continue the terminated contact between two companies, a company, and a client etc. See the example of lost customer sales letter shown below.
Angel Investments Inc.,
TKP Street 12,
Dear Samuel George,
We are sending this letter to remake our broken relationship, which is due to some last transaction failures. During the past few years, you were a very important customer to us and we were always pleased for the business with you. However, some unexpected disasters occurred due to some miscommunication between us and we are sorry for that.
Therefore, this letter is intended to rebuild our lost broker customer relationship during our last deal. As you already know our organization, Angel Investments, is one of the great broking firm in London. We have the membership of business opportunity and business brokers of London and only very few organizations can have this.
We apologize for the mistake that happened in the past and will not repeat again. We are looking forward to re-establish a strong relationship again with you.