You don't need to enter information from your Form 5498 (IRA Contribution Information) into TurboTax - generally you will find the information you need to enter into your return about your IRA contributions on Form 1099-R.
There is no filing requirement for Form 5498.
Ask your investment company to re-send you the form, and just retain it for your records.
For more information about Form 5498, please see the following TurboTax FAQ, "What do I do with Form 5498?":
My rollover IRA trustee is no longer providing a Form 5498 (starting with Tax Year 2017). I think they will only give them to people who have a Required Minimum Distribution for the next year, based on their age. Until then, the only information they are really reporting to you is confirmation that you don't have to take a distribution, and also the fair market value of the account -- which you can get from your December statement.
They probably only submitted the Form 5498 to the IRS. When you have made no contributions to the IRA, they are permitted to provide the FMV and RMD requirement information on your year-end or January statement in lieu of sending you a copy of the Form 5498 that they file with the IRS, so they may not be providing even a downloadable Form 5498.