Has anyone seen a delay in ach to your bank? IRS refund was Monday and the tax processing service says it was sent on Tuesday but my bank says nothing was received

It can take up to 5 business days for your bank to deposit your tax return into your account. If the status in Where’s My Refund? shows “Refund Sent”, the IRS has sent your tax refund to your bank for direct deposit. If you don't receive it in after 5 business days, then you should contact your bank. 

You may want to double-check that you entered your ACH information correctly. If you entered incorrect banking information for your refund, you can change it if your return is rejected.  If it is accepted, however, it is too late to change it.  The bank will reject the refund and send it back to the IRS.  Then the IRS will issue a paper check and mail it to the address you put on your tax return.  Expect a delay of at least a couple of weeks to receive your refund.

Here is what the IRS says about entering incorrect banking information

https://www.irs.gov/help-resources/tools-faqs/faqs-for-individuals/frequently-asked-tax-questions-answers/irs-procedures/refund-inquiries/refund-inquiries-18

https://ttlc.intuit.com/community/refunds/help/what-if-i-entered-the-wrong-bank-account-for-direct-deposit/00/26213