double charges for the upgrade from personal to premium on my card

Double charges like this usually mean there are overlapping or duplicate subscriptions or closely timed payments rather than a single upgrade fee being billed twice. To resolve it, follow these steps:

1. Check for duplicate or overlapping subscriptions
   1. Sign in and review the order history for the Microsoft account used to buy Microsoft 365.
   2. Look for two separate charges of $99 on the same day (or very close together) and confirm whether they are for:
      • Microsoft 365 Personal, and
      • Microsoft 365 Premium (or another Microsoft 365 plan).
   3. If there are two active subscriptions instead of a single upgraded one, one of them needs to be cancelled and refunded.
2. Verify if this is an expected upgrade behavior
   • When switching to a Microsoft 365 subscription with more features, the guidance is to buy the new subscription using the same Microsoft account. The remaining days on the current subscription are converted and added to the new one, and billing is then tied to the new plan, not charged as a one‑time upgrade fee.
   • If both Microsoft 365 Personal and Microsoft 365 Premium (or another plan) were purchased separately instead of one being converted into the other, this can appear as a double charge.
3. Check for multiple accounts or payment methods
   • If only one $99 charge appears in the Microsoft account order history but two $99 charges appear on the card statement, there may be another Microsoft account (for example, a family member) using the same card.
   • Go to Payment options for the Microsoft account and select Investigate to search for other accounts using that card.
4. Investigate the billing charge and request a refund
   1. Use the steps in How to investigate a billing charge from Microsoft to identify exactly what each $99 charge is for.
   2. Once it is clear that there is an unwanted or duplicate subscription/charge, follow the refund and cancellation guidance from the billing support articles (for example, cancel the extra subscription and request a refund if eligible).
5. Contact Microsoft Billing Support if charges still look incorrect
   • If the account history and investigation steps do not clearly explain the two $99 charges, or if a refund is needed beyond what the self‑service options allow, contact Microsoft Support directly and choose a billing/payment topic so the Billing team can review the account and adjust charges if appropriate.

References:

• I've been charged twice
• How to investigate a billing charge from Microsoft
• Switch between Microsoft 365 subscriptions
• Microsoft 365
• Problems renewing a Microsoft 365 subscription
• i have been charged twice - Microsoft Q&A
• How to resolve being billed on 2 separate charge accounts for the same thing - Microsoft Q&A
• Request a refund - Microsoft Q&A
• refund please - Microsoft Q&A
• Have been billed multiple times on multiple charge cards for renewal - Microsoft Q&A
• Get started with Microsoft 365 Premium
• How do I upgrade Office?