Incorrect Interest charged

Virgin Money has charged interest incorrectly to my account. <br> <br> A transaction was conducted on the 14th of February but was not reflected in my February Statement. A positive credit was reflected on my account. <br> <br> The transaction in question was only processed on the 16th of February, and I was only notified of this in my March statement. Virgin Money has deducted interest incorrectly from my account. <br> <br> As the transaction was only processed and reflected in my March statement, no interest should have been charged. <br> <br> Please remove the charged interest. <br>