Is it possible to have my late payment dates removed from my record?

I have done business with Dell in the past and I love their products. They're dependable, high quality and easy to use. I recently puchased a gaming laptop from Dell and was doing well on staying up to date with payments. However, once Dell changed their payment procedures it became difficult for me to make online payments. As a result I incurred 2 late payments. This has effected my credit score which has effected my purchasing capabilities. I sought help multiple times, but was unable to effectively understand what needed to be done. I was finally able to figure out how to make paperless payments and once this was discovered, I payed the balance for the laptop off in full. I am hoping that the late payments incurred may be removed from my record so that my credit score can be restored. Thank you for you attention to my predicament.