At the end of the month, a company's accounts receivable ledger shows a balance of $$50,000,$ but the corresponding balance on the customer statements totals $$48,000.$ Upon further investigation, the following discrepancies are discovered:

A customer's payment of $$2,500$ was received but hasn't been recorded in the company's ledger.

Goods worth $$1,000$ were returned by a customer, but this hasn't been reflected in the company's records.

An invoice for $$800$ was erroneously recorded twice in the company's ledger.

Please include your steps to reconcile.