Last week, a number of customers enrolled in the iPhone Upgrade Program were unable to pre-order the specific iPhone 7 or iPhone 7 Plus model they wanted due to limited stock when orders began at 12:01 a.m. Pacific Time on Friday.

Apple had already warned that demand would outstrip supply as usual, but unlike regular customers, iPhone Upgrade Program members were not given the option to pre-order a new iPhone online for home delivery.

Instead, would-be upgraders were directed to a separate queue that only allowed reserving the iPhone from a local Apple retail store -- many of which were sold out. The experience led to frustrations and even a class action lawsuit, prompting Apple to collect information from customers affected in an attempt to make the situation right. Now, the company appears to have delivered on that promise.

Apple has sent an email to some iPhone Upgrade Program members to inform them that more reservation times for iPhone 7 and iPhone 7 Plus, sans Jet Black models, have been added for September 16. Accordingly, over the past 24 hours or so, several MacRumors readers enrolled in the program have been able to reserve the iPhone model they desired for pickup at a local Apple Store later this week.

If you tried to upgrade through the iPhone Upgrade Program, you may have had difficulty reserving a new iPhone 7 or iPhone 7 Plus due to high demand. We’ve made two important changes to help you. We’ve added more reservation times for this Friday, September 16.

Simply confirm your eligibility and then see if the model you want will be available at an Apple Store near you. Please note that there are no reservations available to pick up the jet black model on Friday. Tell us which iPhone you want and we’ll let you know when it’s in.

If you’re still unable to reserve the model you want for pickup on Friday, let us know your preference by completing this short form. We’ll contact you within 48 to 72 hours to let you know when your iPhone 7 or iPhone 7 Plus will be available for in-store pickup after Friday, September 16.

MacRumors reader Ryan Lister:

I was one of the people who ran into the shortage on launch day from the iPhone Upgrade Program, but stock must have been recently updated and I was just able to make a reservation on launch day for the black iPhone 7 Plus.

MacRumors reader Nathan Walczak:

I'm not sure why, but I was just able to reserve an upgrade for an iPhone 7 Plus. Pickup this Friday. Yesterday all stores in my area were out of the iPhone 7 Plus models. I currently am enrolled in the Upgrade Program from Apple. Seems Apple is trying to fix the glitch?

While availability is still limited, and varies between stores, it is clear that Apple is working to satisfy as many of its customers as possible. iPhone 7 and iPhone 7 Plus officially launch on September 16, including the first pre-order deliveries and the start of in-store purchases split between those who reserved for pickup and walk-in customers on a first come, first served basis.