Walmart is a defensive stock,  so investing in Walmart's shares could be a long-term investment, but high inflation and retail instability could affect its short-term profitability. 
Before deciding, review your income, investing goals, company's future expansion, and overall market conditions.

Well, this has not happened to you only. Others have also faced these issues with AMEX on the American Airlines website. Just add your card to the list of available payment options in your profile, and then choose it at checkout.

You can easily open an account online, through the Capital One mobile app or in- person at any branch of bank. Just add your basic details to open the account. There is no need of deposit to open or maintain the account open.

Capital bank offers the interest rate of 4.25% APY. You can easily transfer your money and manage it very well. Capital bank provides FDIC insurance to protect your accounts upto $250,000 per depositor.